Cellular radiator



A. W. L. HARTBAUER. CELLULAR RADIATOR. APPLICATION FILED FEB. 15. 1919.

Patented Dec. 13, 1921.

.INVENTOR 4, WL. flarfbauer BY HIS ATTORNEYS UNITED STATES PATENT weaver,

Specification of Letters Eatcnt.

CELLULAR RADIATOR.

Patented Dec... 18, rear...

Application filed February 15, 1919. Serial No. 27?,179.

To all whom it may camera:

Be it known that I, AUeUsr vViLLiAr/r LOUIS l-lnnrnnnnn, a citizen of the United States, residing at Detroit, in the county of Wayne and State of lvlichigan, have invented certain new and useful Improvements in Cellularhladiators, and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use the same.

This invention relates to radiators of the so-called cellular type such as are extensively used in connection with automobiles employing internal combustion engines as their motive power. Especially, the inven tion is directed to the improvement of the heat radiating capacity of cellular radiators of the general type disclosed and claimed in Letters Patent of the United States No. 1,233,?65, issued to Edward S. Erickson, as inventor, of date, July 17 1917 and while not limited to any particular radiator, will, for convenience, be described as applied thereto.

The invention is illustrated in the accompanying drawings wherein like characters indicate like parts throughout the several views. Referring to the drawings:

Figure 1 a fragmentary view in front elevation showing a radiator in which the invention is incorporated, a portion only of the cellular core being shown, and some parts beingbroken away Fig. 2 is an enlarged horizontal section taken on the line 2-2 of Fig. 1;

Fig. 3 is a fragmentaryperspective view showing two radiator units and an interposed radiator plate; and

Fig. is a side elevation of one of the radiator plates, a portion thereof being broken away.

In Fig. 1, the radiator frame is indicated by the numeral. 5, the upper water tank of the radiator by the numeral 6, and the lower water tank by the numeral 7, which parts may be of the well known or any suitable construction.

The lower core of the radiator is made up of a multiplicity of units and each unit is made up of two thin sheet metal plates (preferably of brass), indicated by the numeral 8. These plates 8 are bent into form and are put together in parallel arrangement to form zigzag water tubes. In vertical section, the plates 8 follow zigzag lines, the adjacent surfaces of which are 120 degrees, and thus form the tubes with corrugations, towit, with ribs and intervening channels that are alternated on the opposite sides of the tube. At their ends, the plates 8 arepressed together at 8 and united by solder, or otherwise, to form liquid-tight joints. The said tubes, of course, extend from the lower water tank 7 to the upper watertank G. In accordance with the lfirickson invention,previously identified, to provide for the proper alinernent of the several water tubes, and the spacing thereof to form intervening air channels, the tube forming plates 8, at their front and rear edges, are formed with alining webs 9 pressed from the respective plates. These alinedwebs are bent to form half heiiagons, and with the adj acent channels of the respective plates, form hexagons. The said webs 9- areof such form, therefore, that they will enter the channels of adjacent tubes and thus space the adjacent tubes in parallel arrangement, so that vertical zigzag air channels are formed between the tubes.

Cellular radiators of the above type, in practice, have been found highly efficient, but I have found that the efficiency thereof may be further and materially increased by inserting thin sheet metal radiating plates between the water tubes. These interposed radiating plates 10 are preferably of very thin sheet brass and they are alternately bent to form slightly diverging angular surfaces that diverge from ridges 10. Between the ridges the radiator plates 10 are provided with large perforations 10 One of these radiating plates 10 will be inserted between each adjacent pair of tubes, with their ridges 10* extending vertically. By their angular bends and the ridges the radiating plates are given a spring action, so that when crowded down between two radiating tubes,they will be sprung more nearly toward positions, but their ridges and edges only will engage with the tubes. Moreover, the ridges 10 of the said radiator plates will engage only with the flat portions of the ridges of the tubes. This brings the radiating plates into a relation to the tubes that is important from several points of view. In the first place, they act to increase very materially the radiation of the tubes. They have contact with the said tubes so that the heat from the hot water tubes will be conducted rapidly into the said radiating plates. In

the second place, the oblique portions of the radiating tubes act as deflectors to deflect the air which passes horizontally rearward through the air spaces of the core, first in one direction and then in the other against the hot walls of the tubes; and in the third place, provision is made'for the free circulation of air through the holes in the deflecting plates, and also upward between the radiating plates and the adjacent water tubes.

The radiating plates spaced as described will be frictionally held in position, but of course, will also be positively confined in the core when the core is inserted into its frame. Of course, forward and rearward displacement of the interposed radiating plates is prevented by the alining webs which connect the tubes at their inner and outer edges.

The increased efiiciency given to radiators of the abovegeneral character by the insertion therein of the radiating plates described, has been demonstrated in practice.

Vhat I claim is:

1. A cellular radiator comprising water tubes made up of spaced sheet metal plates, said tubes being arranged side by side to form a narrow vertical passage therebetween, angularly corrugated sheet metal perforated radiating plates arranged in said passages with the longitudinal edges of the corrugations disposed vertically, said plates being of spring metal and held in contact with the sides of said tubes by resilient pressure, said radiating plates terminating short of the front and rear ends of said tubes and being insertable and removable from said passages only by vertical movement when said passages are open at their ends.

2. A cellular radiator having water tubes made up of spaced sheet metal plates bent zigzag in a vertical direction, said tubes being arranged side by side to -form vertical narrow passages therebetween, sheet metal radiating plates bent into zigzag form to form vertical ridges and edges, said plates being disposed between said tubes with their vertical edges spring pressed into contact with the horizontal ridges of said tube plates and said radiating plates terminating short of said front and rear edges of said tubes and being insertible and removable only by vertical movement when said passages are open at their ends.

In testimony whereof I afiix my signature in presence of two witnesses.

AUGUST WILLIAM LOUIS HARTBAUER.

Witnesses:

EDWARD C. GRANT, E. G. HUNTER. 

